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Infrastructure priorities

Started by somebody, April 15, 2011, 07:26:43 AM

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HappyTrainGuy

#80
Quote from: somebody on April 21, 2011, 14:53:38 PM
Quote from: somebody on April 21, 2011, 11:46:21 AM
Or maybe you could update the timetables so the problem you are referring to doesn't happen as often.
Is that better?

The Tilt could use the middle road to pass the suburban trains, and this would need to be done if the Petrie trains which RailBoT is calling for would be added.

Main limitation with that is the lack of a crossover from Northgate #4 to Virginia #2.  Unless I am missing something.

I thought that's what the new timetables improved on?

Tilts already use the middle road Lawnton-Northgate. The lack of middle road between Lawnton-Caboolture which is where the bottleneck starts to occur on the NCL. This should somewhat be reduced once the NCL north of Caboolture is duplicated allowing trains to flow more easily (Although there might be a problem once other projects come online).

somebody

Quote from: HappyTrainGuy on April 21, 2011, 16:14:33 PM
I thought that's what the new timetables improved on?
Let's hope so.  They have been a long time in coming.

Quote from: HappyTrainGuy on April 21, 2011, 16:14:33 PM
Tilts already use the middle road Lawnton-Northgate. The lack of middle road between Lawnton-Caboolture which is where the bottleneck starts to occur on the NCL. This should somewhat be reduced once the NCL north of Caboolture is duplicated allowing trains to flow more easily (Although there might be a problem once other projects come online).
I'd wonder if quadding Northgate-Lawnton would be better than a triple Lawnton-Caboolture.

HappyTrainGuy

#82
I'd have to say no on the grounds of the amount of traffic that uses the NCL added with the high speeds, somewhat straight track and limited stops (Dakabin, Narangba, Burpengary and Morayfield). The Nambour-Roma Street express services now becoming an all stations service between Caboolture-Petrie early in the morning already demonstrates just how tight it is to run express trains mixed with all station services during peak hour.

somebody

#83
Quote from: HappyTrainGuy on April 21, 2011, 17:29:08 PM
I'd have to say no on the grounds of the amount of traffic that uses the NCL added with the high speeds, somewhat straight track and limited stops (Dakabin, Narangba, Burpengary and Morayfield). The Nambour-Roma Street express services now becoming an all stations service between Caboolture-Petrie early in the morning already demonstrates just how tight it is to run express trains mixed with all station services during peak hour.
The Caboolture-Petrie in peak bit is the only reason I saw in your post.  Yes, that's a limitation.

I actually think that the 6 June timetable could have, in fact, avoided all stopping to Northgate in the PM at least by coordinating between Sunshine Coast and Doomben and having Sunshine Coast all stopping as far as Eagle Junction.  That would have reduced the demand for Caboolture/Petrie trains.  3 conflicting moves doing so in the AM, but maybe it could still work.  No conflicting moves in the PM, and it actually reduces one around Northgate in the PM.

Doing so would have left less trains for Sunshine Coast trains to conflict with.

BrizCommuter will probably say that now I am trolling on Sunshine Coast commuters.

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